The earthworm is one of the most abundunt species of worms found on planet earth. Most earthworms are found living in common dirt which contains a high content of certain metals like iron or copper. The earthworm feeds on either living or dead organic matter (an example would be dead plants buried in soil). They can grow up to 14 inches long (35cm) and if someone were to cut this species in half, two new earthworms will eventually appear out of the two halves. Their bodies are made up of segments called annuli which help them bury their way into dirt using tiny hairs called setae. Using their mouths they can consume dirt that can contain viable nutrients for survival. Even though they are the most popular of the Annelida group, they are still on the bottom of the food chain because the earthworm is food for various animals like certain birds.
There is no skeletal system for an earthworm. Instead it supports it body with various muscles and the tiny hairs called setae. The role of an earthworms muscles involve making the worm longer or fatter. Like other Annelida, the earthworm contains different sections on it's body cavity that is separated by something called the partition. Within each segment is a muscle that either contracts or expands. Like a skeletal system, these muscles help support the body of the earthworm. Also, an earthworm has a hydrostatic skeleton which is basically fluid around the earthworm's muscles that cause pressure within the worm so that it doesn't collapse on itself.
A specific species of earthworm is the earth worker worm. This type of worm plays a huge role in the enviornment. They bury their way into the soil leaving deep holes of breathing room for plants. Then the earth worker worm would take a poo also known as a worm cast. This plays a huge role in the environment because these worm casts provide nutrients for the plant and the worm would move the nutrients around. This helps plants fertilize overtime.
There is no skeletal system for an earthworm. Instead it supports it body with various muscles and the tiny hairs called setae. The role of an earthworms muscles involve making the worm longer or fatter. Like other Annelida, the earthworm contains different sections on it's body cavity that is separated by something called the partition. Within each segment is a muscle that either contracts or expands. Like a skeletal system, these muscles help support the body of the earthworm. Also, an earthworm has a hydrostatic skeleton which is basically fluid around the earthworm's muscles that cause pressure within the worm so that it doesn't collapse on itself.
A specific species of earthworm is the earth worker worm. This type of worm plays a huge role in the enviornment. They bury their way into the soil leaving deep holes of breathing room for plants. Then the earth worker worm would take a poo also known as a worm cast. This plays a huge role in the environment because these worm casts provide nutrients for the plant and the worm would move the nutrients around. This helps plants fertilize overtime.